Athletic shoe



Aug- 13, 1929 J. T. RIDDELL 1,724,365

ATHLETIC SHOE Filed Dec. 29, 1926 Patented Aug. 133, 1929'.

JOHN T. RIDDELL, OF EVANSTON, ILJN'OIS.

Y ATHLETIC SHOE.

Application led :December 29, 1928*. Serial 150,157,666!

This invention relates to improvements in shoes of the type in whichfriction devices are added to the soles for preventing slipping understress.

The primary object in view is the simple, inexpensive, and efficientanchorage of cleats to shoe soles.

lfVith this and further objects in view, as will in part hereinafterbecome apparent and infpart be stated, the invention coniprises certainnovel constructions, combina'- tions, and arrangements of parts, assubsequently specified and hereafter set forth in the appended claims. Y

in the accompanying drawing,

Fig. l is an inverted plan view of a shoe sole, embodying features ofthe present invention;

Fig. 2 is a top plan view of the same;

Fig. 3 is an edge view of the same;

Fig. 4 is an enlarged, detailed, vertical section through the sole, on aplane of the axes of one of the cleats, the cleat and its retainingscrew being seen in elevation;

Fig. 5 is a sectional elevation of one ofthe cleats detached, the cleatbeing shown in full lines prior to its application and in dotted linesafter application;

Fig. 6 is a section on the' plane indicated by line 6-6 of Fig. 2.

Referring to the drawing' by numerals, l indicates the sole of a shoe,to the tread and heel portions of which is secured a number of frictioncleats, each consisting of an exL posed truncated cone 2, having areduced shank 3 upstanding into the sole l. Sole 1 is formed withaperture 4, one for each of said cleats, each aperture beingproportioned to snugly receive a shank 3. The formation of shank 3leaves a circular shoulder 5 at the base of the cone 2, which shoulderoutstands beyond the line of the aperture 4 and rests against the underface of sole 1. Said shoulder 5, therefore, receives most of thereact-ive stresses incident to walking upon the cleats, and deliverssame directly to the sole l, through which they are distributedsubstantially uniformly to the foot of the wearer. Each of said cleats,before anchorage in the sole, is formed with an aXial bore 6 whichterminates a considerable distance short of the lower end of the cone 2.The cleat made up of the cone 2 and shank 3 is preferably formed ofrubber of the somewhat hardened type commonly utilized for cleats ofathletic shoes. The degree of vulcanization or hardening does not eX-tend to the point of rendering the cleat nolielastic. It does, however,extend 'sufiicie'ntly for rendering the cleat strong and wear re'-sisting. A screw 7 anchors each cleat 2 in rice.

place. Each screw 7 isfOrmed with a highl pitched or wideangled'tapering thread 8 Vof the type' commonly employed loniron screwsused in wood, and known commonly aswoo'd screws. ordinary wood screw inthree respects.l It is provided with a head 9 of relatively wide areaVand preferably circular in form, it isv truncated and has a fiatentering end, and it is case hardened. The head 9 is provided withopenings 10-'-l0, adapted to receive the i shanks of a spanner wrenchfor facilitating rotation of the screw 1n threading 1t into* the bore 6after the shank 3 has been seated snugly within aperture 4. The outerter- Screw 7, however, dier's from an' minus ll of thevscrew y7,- asclearly seen in- Figures 6 and 7 is fiat, the screw 'being' truncated topresent flat surface to the material at' the base of bore 6. Thread 8remains the full width to the outer terminus of the screw; Bore 6,before anchorage of the` cleat, is' preferably cylindrical and of lessdiameter than the root diameter of the screw 7 at its smallest crosssection.

In mounting the cleats, thev sole 1 is provided with the reqilisitenumber f aper# tures 4, and the shanks 3 are introduced therein untilthe several cleats are all set with the shoulders V5 restino against theunder surface of the sole' l. crew 7 is then inserted from the' upper orinside of' the sole and screwed in shank 3 along and within bore 6 untilthe parts are firmly clamped i together. ln moving to this position' thescrew and cleat assume the relative condition indicated in Figure 6. Asthe root diameter of the screw 7 is somewhat tapered adapted for playersof golf or other outdoorV sportsmen particularly desirous of obtaining agood foothold when required, without going to the eXtreme of the use ofthe larger cleats commonly employed for toot ball shoes and the like.

However, the invention i-s in no sense limited to the particular use northe exact size of the cleat employed. JAll cleats within the range ofsuccessful use ot whatever size are included within the scope and intentof the invention so long as utilizing'the features thereof. y l

`VVhat'is claimed is:

1. The combination, with a shoe sole having an aperture, of a cleat ofreadily eXpansible material having a shank adapted to snugly lit saidaperture, the shank being formed with a longitudinal bore, and a screwof larger root diameter than said bore,

. threaded into the bore from the inner portion of the sole.

2. The combination, with ashoe sole havingan aperture, of an elastichardened rubber cleat having a shank proportioned to snugly fit withinthe aperture of the sole, the

i cleat outside the sole being of larger diameter than the shank andformed with a shoulderoutstanding trom the shank and resting against theunder surface of the sole, andV anchoring means extending from the innerportion of the sole and engaging said shank for causing said shank tospread into firm engagement with the inner surface of said aperture.

3. The combination, with a shoe sole having an aperture, of an elastichardened rubber cleat having a shank proportioned to snugly lit withinthe aperture of the sole, the cleat outside the sole being of largerdiameter than the shank, the shank being `formed with a longitudinalbore, and a screw threaded into said bore from the interior portion ofthe sole and spreading said bore and causing said shank to iirmly engagethe sinner surface of said aperture.

4. The combination, with a shoe sole having an aperture, o1 an elastichardened rubber cleat, having a shank proportioned to snugly tit withinthe aperture of the sole, the cleat outside the sole being of largerdiameter than .the shank, the shank being termed with a longitudinalbore, and a screw having a larger root diameter than the diameter ofsaid bore threaded into said bore from the interior portion of the sole.

5. The combination, with a shoe sole having an aperture, et a cleat ofreadily eXpansible material having a shank tted in said aperture, and atapered, case hardened screw, having a truncated body and flat outer endand a wide angle thread, th 'eaded into said shank from the innerportion of the sole.

6. In combination with a slice sole provided with a hole, a vulcanizedrubber cleat having a shank for receptioninto the hole in said shoesole, a cylindrical bore within theshank, said shank having a shoulderedportion protruded exteriorly throughsaid sole, said shouldered portionhaving the configuration of the trustum of a cone, the trun catedportion of which contacts directly with the ground, a truncated screwhaving a liattened head providing an integral disc for seating on theinner side of said sole when said screw is threaded into saidcylindrical bore, the shoe sole being clamped tirmly between theflattened head ot' the screw and the exterior shouldered portion of theshank when said screw is threaded into said cylindrical bore.

7. ln combination with a shoe' sole provided with a hole, a cleat ofreadily eXpansible material having a shank portion adapted to fit snuglyinto said hole, said cleat` having an enlarged portion adapted to extendbelow the tread surface et said sole and provided with a shoulderportion adapted to engage the surface of the sole, a bore within saidcleat shank, and a screw provided with a flattened head, said head beingof greater area than said hole and disposed upon the upper side of saidsole, said screw adaptedto be threaded into said bore.

n testimony whereof I have signed my name to this specification.

